Bit late to the party on this one, Tim, but knowing your riding style, you will almost certainly need a longer seatpost. I'm quite a bit shorter than you, and my standard post was very slightly short on full extension.
I say was, because the Brompfication Ti version that arrived yesterday has a little more height, but that's a whole different story. Just sayin' like, didn't want to tempt you to spend even more cash.